Print quality troubleshooting
The results are seperated onto two screens. Use the Arrow keys to display the second results screen.
Any printhead with a test result containing a number that is not within the ±3 dot row range is misaligned.
The mK printhead is used as a reference to test the other printheads. If all the printheads fail the Pen to Pen tests, it is the mK printhead that is misaligned.
Reading the Printhead Alignment Diagnostic Print
The following plot shows correct printhead alignment for all patterns. The clear band is in the center of the pattern.
The following plot shows bad printhead alignment. The clear band is not in the center of the pattern.
Corrective Action
If any of the printheads are misaligned beyond the ±3 dot row range, perform a Printhead Alignment. See Aligning Printheads on page
If a Printhead Alignment does not correct the problem, replace the bad printhead.
HP Designjet T Series — Service Manual |